Home / 30,257.14-45,356.55-20,374.36

Finding the Fourth Proportional to 30,257.14, 45,356.55 and 20,374.36

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Solution

The fourth proportional to 30,257.14, 45,356.55 and 20,374.36 is: 30,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.14 : 45,356.55 = 20,374.36 : x
  2. Step 2: Convert to fraction form
    30,257.14/45,356.55 = 20,374.36/x
  3. Step 3: Cross multiply
    30,257.14x = 45,356.55 × 20,374.36
  4. Step 4: Simplify right side
    30,257.14x = 924,110,678.06
  5. Step 5: Solve for x
    x = 924,110,678.06/30,257.14
  6. Step 6: Final answer
    x = 30,541.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.